Process for preparing tetraphenoic compounds

Details Process for preparing tetraphenoic compounds Process for preparing tetraphenoic compounds

1991-06-28

1992-09-08

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

528204, 568716, 568718, C07C 3912, C07C 3720

Patent

active

051460068

ABSTRACT:
A process is disclosed for preparing a tetrakisphenol by the reaction of a dialdehyde with a phenolic compound in the presence of a cationic exchange resin catalyst, and then subjecting a solution of the condensation product to conditions suitable for crystallization of the polyphenolic product relatively high in the tetrakisphenol species.

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patent: 4638101 (1987-01-01), Rosenquist
patent: 4820740 (1989-04-01), Li
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